8
OPTIMAX HE 31 C
1.4 Adjustments
Summer/Winter selection
To select Summer, press the
reset
(Part. 6 – fig. 1) for 1 second when the boiler is in Winter mode.
The display will show the Summer icon (Part 10 – fig. 1): the boiler can still produce domestic hot water
whenever there is a demand. The frost protection remains active.
To select Winter mode, press the
reset
(Part. 6 – fig. 1) for 1 second when the boiler is in Summer
mode.
Heating temperature setting
To set the system flow temperature, use the CH push buttons
(Part. 3 and 4 – fig. 1). It can be
varied from a minimum of 20°C to a maximum of 90°C.
Domestic hot water temperature setting
To set the hot water temperature, use the DHW push buttons
(Part. 1 and 2 – fig. 1). It can be
varied from a minimum of 40°C to a maximum of 55°C.
eco
comfort
reset
fig. 8
eco
comfort
reset
fig. 9
eco
comfort
reset
fig. 10
